65471930909 has 8 divisors (see below), whose sum is σ = 81627342528. Its totient is φ = 51017088960.

The previous prime is 65471930899. The next prime is 65471930917. The reversal of 65471930909 is 90903917456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65471930909 - 2¹² = 65471926813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65471930009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425142332 + ... + 425142485.

It is an arithmetic number, because the mean of its divisors is an integer number (10203417816).

Almost surely, 2^65471930909 is an apocalyptic number.

It is an amenable number.

65471930909 is a deficient number, since it is larger than the sum of its proper divisors (16155411619).

65471930909 is a wasteful number, since it uses less digits than its factorization.

65471930909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850284835.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 65471930909 in words is "sixty-five billion, four hundred seventy-one million, nine hundred thirty thousand, nine hundred nine".